Every two years or so

I wash my car.  Well today was the day I did it.  When people start making comments about how you need to clean your windows, well I figure that's a big enough push to do it.

Right now my car is somewhat shiny, looks like it has horrible paint, but hey I can see through the windows so much easier.  Maybe I should wash it every 18 months or so.  Or at least clean my windows every few weeks.